“…The use of enrichment, differentiation, acceleration, and curriculum enhancement has resulted in higher achievement for gifted and talented learners as well as other students when it is applied to a broader population of high and average achievers (Colangelo, Assouline, & Gross, 2004;Field, 2009;Gavin et al, 2007;Gentry & Owen, 1999;Gubbins, Housand, Oliver, Schader, & De Wet, 2007;Kulik, 1992;Reis et al, 2007;Rogers, 1991;Tieso, 2002). For example, in one experimental study, teachers used curriculum compacting and enrichment for gifted students, finding that elimination of work already mastered by gifted and talented students followed by the replacement of enriched learning opportunities such as self-selected independent study resulted in higher or similar achievement scores (Reis, Westberg, Kulikowich, & Purcell, 1998).…”